Business, 11.11.2020 18:10 aime005

A some association On-Line Discount Broker Survey polls members on their experiences with discount brokers. As part of the survey, members were asked to rate the quality of the speed of execution with their broker as well as provide an overall satisfaction rating for electronic trades. Possible responses (scores) were no opinion (0), unsatisfied (l), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker summary scores were computed by calculating a weighted average of the scores provided by each respondent. A portion of the survey results follow Brokerage Speed Satisfaction
Scottrade, Inc.
Charles Schwab
Fidelity Brokerage Services
TD Ameritrade
E*Trade Financial
Vanguard Brokerage Services
USAA Brokerage Services
Thinkorswim
Wells Fargo Investments
Interactive Brokers
Zecco. com
a. Select a scatter diagram for these data with the speed of execution as the independent variable.
A. appletImage?dbid=117523644 B. appletImage?dbid=1709327134
C. appletImage?dbid=1688504328 D. appletImage?dbid=1638363184
- Select your answer -ABCDItem 1
b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?
The scatter diagram indicates a - Select your answer -negativepositiveItem 2 linear relationship between speed of execution rating and overall satisfaction rating for electronic trades.
c. Develop the least squares estimated regression equation. Enter negative value as negative number.
(to 4 decimals)
d. Provide an interpretation for the slope of the estimated regression equation (to 4 decimals).
The slope of the estimated regression line is approximately . So, a one unit - Select your answer -increasedecreaseItem 6 in the speed of execution rating will increase the overall satisfaction rating by approximately points.
e. Suppose Thinkorswim developed new software to increase their speed of execution rating. If the new software is able to increase their speed of execution rating from the current value of to the average speed of execution rating for the other brokerage firms that were surveyed, what value would you predict for the overall satisfaction rating?
(to 3 decimals)

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